How can I select a column with no values?

Posted by Lye on Stack Overflow See other posts from Stack Overflow or by Lye
Published on 2010-04-09T20:06:16Z Indexed on 2010/04/09 20:13 UTC
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mysql

I have a table with thousands of rows and hundreds of columns (not my design). I'm trying to find out which columns are never used so I can simplify the table a little. How can I find which of the columns have no value in all rows?

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How can I select a column with no values? - Developer IT

How can I select a column with no values?

mysql

Related posts about mysql

How to remove MySQL completely with config and library files on ubuntu 12.04 gnome 3.0

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Why is there a /etc/init.d/mysql file on this Slackware machine? How could it have gotten there?

mysql: Bind on unix socket: Permission denied

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